Double-control natural gas turbine debugging pry

Abstract

The utility model relates to the field of natural gas turbine debugging, in particular to a double-control natural gas turbine debugging skid which comprises a skid-mounted box, a replacement system is arranged in the skid-mounted box and comprises a gas inlet pipe, one end of the gas inlet pipe is connected with a gas source, and the other end of the gas inlet pipe is communicated with a gas conveying pipe. A replacement opening and a gas conveying opening are formed in the gas conveying pipe, the replacement opening is connected with a nitrogen tank through a first nitrogen branch and a second nitrogen branch, a tee joint is arranged on the gas conveying opening, the upper end of the tee joint is connected with a high-altitude discharging pipeline through a first discharging branch and a second discharging branch, and the lower end of the tee joint is connected with a gas conveying pipe. The gas supply pipe is connected with a first gas supply branch and a second gas supply branch, the first gas supply branch is connected with a heating system, the second gas supply branch is connected with a high-altitude discharge pipeline through a first gas supply auxiliary path, the second gas supply auxiliary path is connected with a natural gas outlet main path, and a gas detector is arranged on the first gas supply auxiliary path. The working efficiency of the device can be guaranteed, pollution can be effectively reduced, and safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of natural gas turbine commissioning, specifically to a dual-control natural gas turbine commissioning skid. Background Technology

[0002] Currently, when commissioning natural gas turbines, it is necessary to replace the air in the connecting pipeline with nitrogen. However, the existing nitrogen replacement methods all use on-site purging to achieve the purpose of replacement, and it is impossible to know whether the air in the connecting pipeline has been completely replaced. Furthermore, the replaced gas is directly discharged into the air, which not only causes serious pollution but also poses a risk of explosion. Utility Model Content

[0003] The purpose of this invention is to provide a dual-control natural gas turbine commissioning skid, which solves the problem of not being able to accurately control the air replacement results.

[0004] To achieve the above objectives, the solution proposed by this utility model is as follows:

[0005] A dual-control natural gas turbine commissioning skid includes a skid-mounted enclosure with a replacement system inside. The replacement system includes an inlet pipe, one end of which is connected to a gas source, and the other end is connected to a gas transmission pipe. The gas transmission pipe has a replacement port and a gas transmission port. The replacement port is connected to a nitrogen tank via a first nitrogen branch and a second nitrogen branch. The gas transmission port is equipped with a tee. The upper end of the tee is connected to a high-altitude emission pipe via a first exhaust branch and a second exhaust branch. The lower end of the tee is connected to a gas delivery pipe, which is connected to a first gas delivery branch and a second gas delivery branch. The first gas delivery branch is connected to a heating system, and the second gas delivery branch is connected to a first auxiliary gas delivery line and a second auxiliary gas delivery line. The first auxiliary gas delivery line is connected to the high-altitude emission pipe, and the second auxiliary gas delivery line is connected to the main natural gas outlet line. A gas detector is installed on the first auxiliary gas delivery line.

[0006] Furthermore, the first nitrogen branch includes a first nitrogen connecting pipe, a second nitrogen connecting pipe, and a third nitrogen connecting pipe connected in sequence. The first nitrogen connecting pipe is connected to a replacement port via a replacement pipe, and the third nitrogen connecting pipe is connected to a nitrogen tank via a nitrogen main pipe. Ball valves are installed on both the first and third nitrogen connecting pipes, and a shut-off valve is installed on the second nitrogen connecting pipe. One end of the second nitrogen branch is connected to a replacement port via a replacement pipe, and the other end is connected to a nitrogen tank via a nitrogen main pipe. A ball valve is installed on the second nitrogen branch.

[0007] Furthermore, the first emission branch includes a first emission connecting pipe and a second emission connecting pipe connected in sequence. The first emission connecting pipe is connected to the gas inlet through the main exhaust pipe, and the second emission connecting pipe is connected to the high-altitude emission pipeline through the main vent pipe. The second emission branch includes a third emission connecting pipe and a fourth emission connecting pipe connected in sequence. The third emission connecting pipe is connected to the gas inlet through the main exhaust pipe, and the fourth emission connecting pipe is connected to the high-altitude emission pipeline through the main vent pipe. The first emission connecting pipe is equipped with a ball valve and a shut-off valve, with the ball valve located on both sides of the shut-off valve. The third emission connecting pipe is equipped with a ball valve.

[0008] Furthermore, the skid-mounted box is equipped with a first control panel, which includes a first replacement button, a warning light, and an exhaust pipe. The first replacement button is electrically connected to the shut-off valve on the second nitrogen connecting pipe and the shut-off valve on the first discharge connecting pipe. One end of the exhaust pipe is connected to the gas supply pipe, and the other end is equipped with a shut-off valve. The warning light is electrically connected to a gas detector.

[0009] Furthermore, the heating system outputs the heated natural gas through the main delivery pipe.

[0010] Furthermore, the main delivery pipe is equipped with a detection port, a waste discharge port, and an exhaust port. The waste discharge port is connected to the high-altitude exhaust pipe through the third and fourth exhaust branches. The exhaust port is equipped with a tee, one end of which is connected to the nitrogen intake pipe through the first and second intake branches, and the other end is connected to the natural gas outlet main line through the transition pipe.

[0011] Furthermore, the third discharge branch includes a first discharge pipe and a second discharge pipe connected in sequence. The first discharge pipe is connected to the discharge port through the main discharge pipe, and the second discharge pipe is connected to the high-altitude discharge pipe. Ball valves are installed on both the first and second discharge pipes, and a shut-off valve is also installed on the first discharge pipe, which is located between the ball valves of the first and second discharge pipes. The fourth discharge branch includes a third discharge pipe and a fourth discharge pipe. The third discharge pipe is connected to the discharge port through the main discharge pipe, and the fourth discharge pipe is connected to the high-altitude discharge pipe. A ball valve is installed on the third discharge pipe.

[0012] Furthermore, the first intake branch includes a first intake connecting pipe and a second intake connecting pipe connected in sequence. The first intake connecting pipe is connected to the exhaust port through a connecting pipe, and the second intake connecting pipe is connected to the nitrogen intake pipe. The first intake connecting pipe is equipped with a ball valve and a shut-off valve, and the second intake connecting pipe is equipped with a ball valve. The shut-off valve on the first intake connecting pipe is located between the ball valve of the first intake connecting pipe and the ball valve of the second intake connecting pipe. The second intake branch includes a third intake connecting pipe and a fourth intake connecting pipe. The third intake connecting pipe is connected to the exhaust port through a connecting pipe, and the second exhaust port is connected to the nitrogen intake pipe. The third intake connecting pipe is equipped with a ball valve.

[0013] Furthermore, a second control panel is provided on the skid-mounted box, and a second replacement button and a detection tube are configured on the second control panel. One end of the detection tube is connected to the detection port, and the other end is provided with a shut-off valve. The second replacement button is electrically connected to the shut-off valve on the first air intake connection pipe.

[0014] Furthermore, the skid-mounted container is also equipped with an odorizer, which is connected to the main natural gas outlet to promptly detect leaked natural gas.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention allows technicians to replace the air in the connecting pipeline by operating a first replacement button located on the outside of the skid-mounted container. After pressing the first replacement button, nitrogen gas enters the gas transmission pipe from the first nitrogen branch. Once the pressure in the gas transmission pipe stabilizes, the shut-off valve on the second nitrogen connecting pipe is closed, and the shut-off valve on the first discharge connecting pipe is opened, allowing the replaced gas to be discharged into the high-altitude atmosphere through the high-altitude discharge pipe. This process is repeated multiple times. Once the gas concentration detected by the gas detector on the second gas supply auxiliary line reaches the transmission standard, a warning light on the first control panel illuminates, indicating that the replacement is complete and natural gas transmission can begin. This invention can precisely control the replacement result in the connecting pipeline, preventing incomplete or excessive replacement. Attached Figure Description

[0017] Figure 1 A top view of a commissioning skid for a dual-control natural gas turbine.

[0018] Figure 2 for Figure 1 Cross-sectional view at point AA.

[0019] Figure 3 This is a schematic diagram of the replacement system.

[0020] Figure 4 This is a schematic diagram of the first and second gas supply auxiliary circuits.

[0021] Figure 5 Schematic diagram of the main transport route. Detailed Implementation

[0022] like Figure 1As shown, a dual-control natural gas turbine commissioning skid includes a skid-mounted container 1. The skid-mounted container 1 is equipped with a displacement system 5 and a heating system 6. Natural gas from a natural gas delivery vehicle is processed sequentially through the displacement system 5 and the heating system 6 before entering the gas usage location. The displacement system 5 is used to replace the air in the pipeline of this device, and the heating system 6 achieves precise temperature control of the natural gas and outputs the heated natural gas to the gas usage location through the main delivery pipe.

[0023] like Figure 2 and Figure 3 As shown, when replacing the air in the pipeline, the technician operates the first control panel 11 located on the skid-mounted box 1. After pressing the first replacement button on the first control panel 11, the shut-off valve 100 on the first nitrogen branch 12 will be open, making the nitrogen tank 101 connected to the first nitrogen branch 12. The ball valve 102 on the second nitrogen branch 13 will be closed, making the nitrogen tank 101 connected to the second nitrogen branch 13 a closed circuit. The ball valve 102 and shut-off valve 100 on the first discharge branch 14 will be closed, making the first discharge branch 14 a closed circuit with the high-altitude discharge pipeline 2. The ball valve 102 on the second emission branch 15 is closed, making the second emission branch 15 a closed loop with the high-altitude emission pipe 2. The nitrogen in the nitrogen tank 101 will fill the gas delivery pipe 3 due to pressure. After the pressure transmitter 103 on the gas delivery pipe 3 shows that the pressure in the tank has stabilized, the shut-off valve 100 on the first nitrogen branch 12 is closed, making the nitrogen tank 101 a closed loop with the first nitrogen branch 12. The ball valve 102 and the shut-off valve 100 on the first emission branch 14 are open, making the first emission branch 14 a passage with the high-altitude emission pipe 2, and the gas is discharged to the high altitude through the high-altitude emission pipe 2, ensuring environmental protection and safety. The first discharge branch 14 includes a first discharge connecting pipe 141 and a second discharge connecting pipe 142 connected in sequence. The first discharge connecting pipe 141 is connected to the gas inlet through the main exhaust pipe 16, and the second discharge connecting pipe 142 is connected to the high-altitude discharge pipe 2 through the main vent pipe 17. A ball valve 102 and a shut-off valve 100 are provided on the first discharge connecting pipe 141, with the ball valve 102 located on both sides of the shut-off valve 100. The second discharge branch 15 includes a third discharge connecting pipe 151 and a fourth discharge connecting pipe 152 connected in sequence. The third discharge connecting pipe 151 is connected to the gas inlet through the main exhaust pipe 16, and the fourth discharge connecting pipe 152 is connected to the high-altitude discharge pipe 2 through the main vent pipe 17. A ball valve 102 is provided on the third discharge connecting pipe 151. When discharging gas, some gas will enter the gas supply pipe 4 located at the lower end of the tee through the tee located on the gas supply pipe 3, such as... Figure 4As shown, the shut-off valve 100 on the first gas supply branch 18 is closed, preventing gas from entering the heating system 6. The solenoid valve and ball valve 102 on the second gas supply branch 19 are open, allowing gas to enter the first auxiliary gas supply branch 191 and the second auxiliary gas supply branch 192. The gas detector 20 on the first auxiliary gas supply branch 191 can detect the concentration of gas in the pipe. With the assistance of the control system, the device repeats the above steps until the reading on the gas detector 20 reaches the target concentration. At this point, the warning light on the first control panel 11 illuminates, indicating that the air in the pipeline has been replaced. Furthermore, the gas concentration can be verified through the gas outlet pipe 21 located on the first control panel 11. By opening the shut-off valve 22 on the gas outlet pipe 21, gas from the gas supply pipe 3 will be exposed through the outlet pipe 21. Technicians can then use instruments to detect the gas and check if the concentration standard has been reached, thereby improving the accuracy of the device.

[0024] The first nitrogen branch 12 includes a first nitrogen connecting pipe 121, a second nitrogen connecting pipe 122, and a third nitrogen connecting pipe 123 connected in sequence. When nitrogen flows out of the nitrogen tank 101, it enters the third nitrogen connecting pipe 123 through the main nitrogen pipe 23, and then passes through the second nitrogen connecting pipe 122 and the first nitrogen connecting pipe 121 in sequence. The first nitrogen connecting pipe 121 sends the nitrogen to the gas delivery pipe 3 through the replacement pipe 125 and the replacement port, filling the gas delivery pipe 3 with nitrogen. After the pressure stabilizes, the shut-off valve 100 on the second nitrogen connecting pipe 122 is opened, and the shut-off valve 100 on the first discharge connecting pipe 141 is closed, allowing the gas to enter the first discharge connecting pipe 141 from the upper end of the tee at the delivery port, and then enter the high-altitude discharge pipe 2 through the main vent pipe 17 connected to the second discharge connecting pipe 142, and finally be discharged to the high altitude through the high-altitude discharge pipe 2.

[0025] To prevent damage to the pipes and components involved in the first nitrogen branch 12 and the first discharge branch 14 from affecting the accuracy of the replacement results, a second nitrogen branch 13 and a second discharge branch 15 are provided. If the shut-off valves 100 on the first nitrogen branch 12 and the first discharge branch 14 malfunction, the ball valves 102 located on the first nitrogen connecting pipe 121 and the third nitrogen connecting pipe 123 are closed respectively, and the ball valve 102 on the second nitrogen branch 13 is opened, so that the second nitrogen branch 13 is connected to the nitrogen tank 101, and the first nitrogen branch 12 and the nitrogen tank 101 are closed, so that nitrogen enters the second nitrogen branch 13 from the nitrogen main pipe 23, and then enters the gas supply pipe 3 from the second nitrogen branch 13 through the delivery port. Close the ball valve 102 and shut-off valve 100 on the first discharge connecting pipe 141, and open the ball valve 102 on the third discharge connecting pipe 151, so that the second discharge branch 15 is connected to the high-altitude discharge pipe 2, and the first discharge branch 14 is closed to the high-altitude discharge pipe 2. This can also achieve the replacement of air in the pipe, providing a guarantee for the operation of the device.

[0026] A natural gas delivery vehicle is connected to one end of the intake pipe 8, and the other end of the intake pipe 8 is connected to the delivery pipe 3. After the air in the pipeline is replaced, natural gas enters the delivery pipe 3 from the intake pipe 8. In the delivery pipe 3, the natural gas first passes through the replacement port and then through the delivery port. A two-valve assembly 105 is installed between the replacement port and the delivery port. A pressure transmitter 103 is installed on the delivery pipe 3. The two-valve assembly 105 and the pressure transmitter 103 work together to regulate the flow parameters of the natural gas. Subsequently, the natural gas is delivered to the heating system 6 through the first delivery branch 18. The heating system 6 precisely heats the natural gas, and finally, the heated natural gas is output from the main delivery pipe 9.

[0027] like Figure 5 As shown, after being precisely heated by the heating system 6, the natural gas is output through the main delivery pipe 9. The main delivery pipe 9 is equipped with a detection port, a sludge discharge port, and an exhaust port. The sludge discharge port is connected to the high-altitude exhaust pipe 2 through the third exhaust branch 31 and the fourth exhaust branch 32. The exhaust port is equipped with a tee. One end of the tee is connected to the nitrogen inlet pipe 35 through the first intake branch 33 and the second intake branch 34, and the other end is connected to the natural gas outlet main line 37 through the transition pipe 36.

[0028] Before stopping the natural gas supply, the gas in the pipeline between the heating system 6 and the main natural gas outlet 37 needs to be replaced. Technicians operate the second control panel 41 on the skid-mounted unit 1, pressing the second replacement button on the second control panel 41. This closes the ball valve 102 and shut-off valve 100 on the third discharge branch 31, and the ball valve 102 on the fourth discharge branch 32, disconnecting the third and fourth discharge branches 31 from the main supply pipe 9. Then, the shut-off valve 102 and ball valve 102 on the first intake branch 33 are opened, connecting the nitrogen inlet pipe 35 to the main supply pipe 9 via the first intake branch 33. The nitrogen inlet pipe 35 will then connect to the nitrogen... The gas source is used to fill the main delivery pipe 9 with nitrogen. After the pressure transmitter 103 of the main delivery pipe 9 stabilizes, the shut-off valve 100 and ball valve 102 on the first inlet branch 33 are closed, disconnecting the nitrogen inlet pipe 35 from the main delivery pipe 9 through the first inlet branch 33. The ball valve 102 and shut-off valve 100 on the third discharge branch 31 are then opened, allowing the gas in the main delivery pipe 9 to be transported to the high-altitude discharge pipe 2 through the third discharge branch 31. Finally, the gas is discharged into the high-altitude atmosphere through the high-altitude discharge pipe 2. This process is repeated multiple times to ensure that the gas in the pipeline between the heating system 6 and the natural gas outlet main line 37 meets the requirements. At this time, the warning light on the second control panel 41 illuminates, indicating that the replacement is complete. Additionally, the shut-off valve 22 on the detection pipe can be opened, allowing technicians to use handheld instruments to check whether the gas exiting the detection pipe meets the replacement requirements, thus improving the accuracy of the device.

[0029] The third discharge branch 31 includes a first discharge pipe 311 and a second discharge pipe 312 connected in sequence. The first discharge pipe 311 is connected to the discharge port through a main discharge pipe 51, and the second discharge pipe 312 is connected to the high-altitude discharge pipe 2 through an extension pipe 53. Ball valves 102 are provided on both the first discharge pipe 311 and the second discharge pipe 312. A shut-off valve 100 is also provided on the first discharge pipe 311, and the shut-off valve 100 on the first discharge pipe 311 is located between the ball valves 102 of the first discharge pipe 311 and the second discharge pipe 312. The fourth discharge branch 32 includes a third discharge pipe 321 and a fourth discharge pipe 322. The third discharge pipe 321 is connected to the discharge port through a main discharge pipe 51, and the fourth discharge pipe 322 is connected to the high-altitude discharge pipe 2 through an extension pipe 53. A ball valve 102 is provided on the third discharge pipe 321.

[0030] The first intake branch 33 includes a first intake connecting pipe 331 and a second intake connecting pipe 332 connected in sequence. The first intake connecting pipe 331 is connected to the exhaust port through a connecting pipe 52, and the second intake connecting pipe 332 is connected to the nitrogen intake pipe 35. The first intake connecting pipe 331 is provided with a ball valve 102 and a shut-off valve 100, and the second intake connecting pipe 332 is provided with a ball valve 102. The shut-off valve 100 on the first intake connecting pipe 331 is located between the ball valve 102 of the first intake connecting pipe 331 and the ball valve 102 of the second intake connecting pipe 332. The second intake branch 34 includes a third intake connecting pipe 341 and a fourth intake connecting pipe 342. The third intake connecting pipe 341 is connected to the exhaust port through a connecting pipe 52, and the second exhaust port is connected to the nitrogen intake pipe 35. The third intake connecting pipe 341 is provided with a ball valve 102.

[0031] Nitrogen gas can enter the main delivery pipe 9 from either the third discharge branch 31 or the fourth discharge branch 32. The direction of the nitrogen gas can be controlled by adjusting the valves on the third and fourth discharge branches 31 and 32. If the commonly used third discharge branch 31 fails, the backup fourth discharge branch 32 can be used for gas replacement. During gas discharge, gas can be delivered to the high-altitude discharge pipe from either the first intake branch 33 or the second intake branch 34. If the commonly used first intake branch 33 fails, the backup second intake branch 34 can be used for gas discharge.

[0032] The skid-mounted unit 1 is also equipped with an odorizer 55, which is connected to the main natural gas outlet 37. When natural gas leaks from the main natural gas outlet 37, the gas in the odorizer 55 will be exposed along with the natural gas and produce an irritating odor, alerting staff that a natural gas leak may have been detected, thus effectively preventing natural gas leaks.

[0033] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A dual-control natural gas turbine commissioning sled, characterized by, The system includes a skid-mounted container equipped with a displacement system. The displacement system includes an inlet pipe, one end of which is connected to a gas source, and the other end to a gas delivery pipe. The gas delivery pipe has a displacement port and a delivery port. The displacement port is connected to a nitrogen tank via a first nitrogen branch and a second nitrogen branch. The delivery port has a tee valve; the upper end of the tee valve is connected to a high-altitude emission pipe via a first and second emission branch, and the lower end of the tee valve is connected to a gas supply pipe. The gas supply pipe connects to a first gas supply branch and a second gas supply branch. The first gas supply branch is connected to a heating system, and the second gas supply branch connects to a first auxiliary gas supply line and a second auxiliary gas supply line. The first auxiliary gas supply line is connected to the high-altitude emission pipe, and the second auxiliary gas supply line is connected to the main natural gas outlet line. A gas detector is installed on the first auxiliary gas supply line.

2. A dual-control natural gas turbine commissioning pry according to claim 1, wherein, The first nitrogen branch includes a first nitrogen connecting pipe, a second nitrogen connecting pipe, and a third nitrogen connecting pipe connected in sequence. The first nitrogen connecting pipe is connected to a replacement port via a replacement pipe, and the third nitrogen connecting pipe is connected to a nitrogen tank via a nitrogen main pipe. Ball valves are installed on both the first and third nitrogen connecting pipes, and a shut-off valve is installed on the second nitrogen connecting pipe. One end of the second nitrogen branch is connected to a replacement port via a replacement pipe, and the other end is connected to a nitrogen tank via a nitrogen main pipe. A ball valve is installed on the second nitrogen branch.

3. A dual-control natural gas turbine commissioning pry according to claim 2, wherein, The first discharge branch includes a first discharge connecting pipe and a second discharge connecting pipe connected in sequence. The first discharge connecting pipe is connected to the gas inlet through the main exhaust pipe, and the second discharge connecting pipe is connected to the high-altitude discharge pipeline through the main vent pipe. The second discharge branch includes a third discharge connecting pipe and a fourth discharge connecting pipe connected in sequence. The third discharge connecting pipe is connected to the gas inlet through the main exhaust pipe, and the fourth discharge connecting pipe is connected to the high-altitude discharge pipeline through the main vent pipe. The first discharge connecting pipe is equipped with a ball valve and a shut-off valve, with the ball valve located on both sides of the shut-off valve. The third discharge connecting pipe is equipped with a ball valve.

4. A dual-control natural gas turbine commissioning pry according to claim 3, wherein, The skid-mounted box is equipped with a first control panel, which includes a first replacement button, a warning light, and a gas outlet pipe. The first replacement button is electrically connected to the shut-off valve on the second nitrogen connecting pipe and the shut-off valve on the first discharge connecting pipe. One end of the gas outlet pipe is connected to the gas supply pipe, and the other end is equipped with a shut-off valve. The warning light is electrically connected to a gas detector.

5. A dual-control natural gas turbine commissioning pry according to claim 1, wherein, The heating system outputs heated natural gas through the main delivery pipe.

6. A dual-control natural gas turbine commissioning pry according to claim 5, wherein, The main delivery pipe is equipped with a detection port, a waste discharge port, and an exhaust port. The waste discharge port is connected to the high-altitude emission pipe through the third and fourth emission branches. The exhaust port is equipped with a tee. One end of the tee is connected to the nitrogen inlet pipe through the first and second air inlet branches, and the other end is connected to the natural gas outlet main line through the transition pipe.

7. A dual-control natural gas turbine commissioning pry according to claim 6, wherein, The third discharge branch includes a first discharge pipe and a second discharge pipe connected in sequence. The first discharge pipe is connected to the discharge port through the main discharge pipe, and the second discharge pipe is connected to the high-altitude discharge pipe. Ball valves are installed on both the first and second discharge pipes. A shut-off valve is also installed on the first discharge pipe, which is located between the ball valves of the first and second discharge pipes. The fourth discharge branch includes a third discharge pipe and a fourth discharge pipe. The third discharge pipe is connected to the discharge port through the main discharge pipe, and the fourth discharge pipe is connected to the high-altitude discharge pipe. A ball valve is installed on the third discharge pipe.

8. A dual-control natural gas turbine commissioning pry according to claim 7, wherein, The first intake branch includes a first intake connecting pipe and a second intake connecting pipe connected in sequence. The first intake connecting pipe is connected to the exhaust port through a connecting pipe, and the second intake connecting pipe is connected to the nitrogen intake pipe. The first intake connecting pipe is equipped with a ball valve and a shut-off valve, and the second intake connecting pipe is equipped with a ball valve. The shut-off valve on the first intake connecting pipe is located between the ball valve on the first intake connecting pipe and the ball valve on the second intake connecting pipe. The second intake branch includes a third intake connecting pipe and a fourth intake connecting pipe. The third intake connecting pipe is connected to the exhaust port through a connecting pipe, and the second exhaust port is connected to the nitrogen intake pipe. The third intake connecting pipe is equipped with a ball valve.

9. A dual-control natural gas turbine commissioning pry according to claim 8, wherein, The skid-mounted box is equipped with a second control panel, which includes a second replacement button and a detection tube. One end of the detection tube is connected to a detection port, and the other end is equipped with a shut-off valve. The second replacement button is electrically connected to a shut-off valve on the first air intake connection pipe.

10. A dual-control natural gas turbine commissioning pry according to claim 9, wherein, The skid-mounted container is also equipped with an odorizer, which is connected to the main natural gas outlet to detect leaked natural gas in a timely manner.

Images